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Finding the Fourth Proportional to 33,187.60, 49,781.40 and 30,653.20

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Solution

The fourth proportional to 33,187.60, 49,781.40 and 30,653.20 is: 45,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,187.60 : 49,781.40 = 30,653.20 : x
  2. Step 2: Convert to fraction form
    33,187.60/49,781.40 = 30,653.20/x
  3. Step 3: Cross multiply
    33,187.60x = 49,781.40 × 30,653.20
  4. Step 4: Simplify right side
    33,187.60x = 1,525,959,210.48
  5. Step 5: Solve for x
    x = 1,525,959,210.48/33,187.60
  6. Step 6: Final answer
    x = 45,979.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.